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1,1,2,2-Tetrachloroethane (TeCA) as a Solvent Additive for Organic Hole Transport Materials and Its Application in Highly Efficient Solid-State Dye-Sensitized Solar Cells
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi. KTH, Skolan för kemivetenskap (CHE), Centra, Molekylär elektronik, CMD.
KTH, Skolan för kemivetenskap (CHE), Kemi, Tillämpad fysikalisk kemi. KTH, Skolan för kemivetenskap (CHE), Centra, Molekylär elektronik, CMD.
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi. KTH, Skolan för kemivetenskap (CHE), Centra, Molekylär elektronik, CMD.
Vise andre og tillknytning
2015 (engelsk)Inngår i: Advanced Energy Materials, ISSN 1614-6832, Vol. 5, nr 10, artikkel-id 1402340Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A low-cost, chlorinated hydrocarbon solvent, 1,1,2,2-tetrachloroethane (TeCA), is used as an effective additive for the triarylamine-based organic hole-transport material, Spiro-OMeTAD, which is successfully applied in highly efficient solid-state dye-sensitized solar cells. A record power conversion efficiency of 7.7% is obtained by using the donor (D)-π-acceptor (A)-dye, LEG4, in combination with the new method of TeCA-doping of the hole-transporting material Spiro-OMeTAD.

sted, utgiver, år, opplag, sider
2015. Vol. 5, nr 10, artikkel-id 1402340
Emneord [en]
conductivity, hole-transport materials, p-type dopants, solid-state dye-sensitized solar cells
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-169262DOI: 10.1002/aenm.201402340ISI: 000354810400011Scopus ID: 2-s2.0-84929963802OAI: oai:DiVA.org:kth-169262DiVA, id: diva2:822228
Forskningsfinansiär
Swedish Research CouncilSwedish Energy AgencyKnut and Alice Wallenberg Foundation
Merknad

QC 20150616

Tilgjengelig fra: 2015-06-16 Laget: 2015-06-12 Sist oppdatert: 2016-12-06bibliografisk kontrollert
Inngår i avhandling
1. Advanced Organic Hole Transport Materials for Solution-Processed Photovoltaic Devices
Åpne denne publikasjonen i ny fane eller vindu >>Advanced Organic Hole Transport Materials for Solution-Processed Photovoltaic Devices
2015 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Solution-processable photovoltaic devices (PVs), such as perovskite solar cells (PSCs) and solid-state dye-sensitized solar cells (sDSCs) show great potential to replace the conventional silicon-based solar cells for achieving low-cost and large-area solar electrical energy generation in the near future, due to their easy manufacture and high efficiency. Organic hole transport materials (HTMs) play important roles in both PSCs and sDSCs, and thereby can well facilitate the hole separation and transportation, for obtaining high performance solar cells.

The studies in this thesis aimed to develop advanced small-molecule organic HTMs with low-cost, high hole mobility and conductivity for the achievement of highly efficient, stable and reproducible sDSCs and PSCs. In order to achieve these objectives, two different strategies were utilized in this thesis: the development of new generation HTMs with simple synthetic routes and the introduction of cost-effective p-type dopants to control the charge transport properties of HTMs.

In Chapter 1 and Chapter 2, a general introduction of the solution-processed sDSCs and PSCs, as well as the characterization methods that are used in this thesis were presented.

In Chapter 3 and Chapter 4, a series of novel triphenylamine- and carbazole- based HTMs with different oxidation potential, hole mobility, conductivity and molecular size were designed and synthesized, and then systematically applied and investigated in sDSCs and PSCs.

In Chapter 5, two low-cost and colorless p-type dopants AgTFSI and TeCA were introduced for the organic HTM-Spiro-OMeTAD, which can significantly increase the conductivity of the Spiro-OMeTAD films. The doping effects on the influence of sDSC and PSC device performances were also systematically investigated.

sted, utgiver, år, opplag, sider
Stockholm: KTH Royal Institute of Technology, 2015. s. 76
Serie
TRITA-CHE-Report, ISSN 1654-1081 ; 2015:42
HSV kategori
Forskningsprogram
Kemi
Identifikatorer
urn:nbn:se:kth:diva-173651 (URN)978-91-7595-660-2 (ISBN)
Disputas
2015-10-09, F3, KTH, Lindstedtsvägen 26, KTH, Stockholm, 10:00 (engelsk)
Opponent
Veileder
Merknad

QC 20150916

Tilgjengelig fra: 2015-09-16 Laget: 2015-09-16 Sist oppdatert: 2015-09-16bibliografisk kontrollert

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